Rockfall attenuator and hybrid barrier systems combine the performance of standard drape nets and flexible rockfall barriers. The testing of these systems proves a challenge when placed in the framework of Swiss or EOTA guideline for technical approval of rockfall protection kits. The importance of net and rock slope interaction during the attenuating process necessitates a test load that models closer the natural occurrence of rockfall. A series of seven rockfall tests were conducted. Rock boulders up to 1,000 kg were released using a trial net ramp release mechanism. A test hybrid barrier system was installed with a marked impact zone at the top and extended drape section for the remaining slope. Impacting rock boulders enabled observations of system behaviour with interactions of net and rock boulder during its decent. An overview of the testing procedure, release mechanism and the observed results of the rockfall tests are presented herein.